Sample 26

NavDat sample number 63217 · PYROCLASTIC-FALL

Sample

Sample ID	26
Alternate ID	N-ASW-65
Rock name	PYROCLASTIC-FALL
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Collected by	A.M. Sarna-Wojcicki
Comment	Bailey ash, Ventura

Location

Latitude	34.3389
Longitude	-119.393
Location	Ventura County
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
1.2		0.9	1.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SC	2.72		PPM	NAA
MN	444		PPM	NAA
ZN	27		PPM	NAA
RB	237		PPM	NAA
CS	8.4		PPM	NAA
LA	17.4		PPM	NAA
CE	42.4		PPM	NAA
ND	19		PPM	NAA
SM	4.35		PPM	NAA
EU	0.04		PPM	NAA
TB	0.85		PPM	NAA
DY	5.23		PPM	NAA
YB	3.9		PPM	NAA
LU	0.55		PPM	NAA
HF	4.16		PPM	NAA
TA	3.19		PPM	NAA
TH	27.5		PPM	NAA
U	9.56		PPM	NAA

References

Sarna-Wojcicki, Andrei M; Bowman, H R; Meyer, C E; Russell, P C; Woodward, M J; McCoy, Gail; Rowe, J J, Jr; Baedecker, P A; Asaro, Frank; Michael, Helen (1984) U. S. Geological Survey Professional Paper, Report: P 1293, 40 pp., 1984